Data PolicyPublications | Persons | Institutes | Projects IMIS Photogallery » References Histocidaris nuttingi (ambulacral plates) Description Part of ambulacrum at the ambitus. In the marginal series larger primary tubercles alternate from one side to the other. Adradial area of interambulacra broad.Scale 5 mm. Author Schultz, Heinke JPG file - 104.54 kB - 724 x 591 pixels added on 2011-02-23199 viewsFrom reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Schultz, Heinke Click here to return to the thumbnails overview